ASTROSAT CZTI

Data Quality Report

Orbit 08540

Creation date: 2024-06-27T15:34:02.604172
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_060T01_9000001200_08540cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08540cztM0_level2_quad_clean.evt
Size (bytes)401,284,80080,432,640
Size382.7 MB 76.7 MB
Events in quadrant A3,040,423507,060
Events in quadrant B3,142,549515,719
Events in quadrant C2,783,349501,533
Events in quadrant D2,769,269483,157

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01242
B01242
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013151101
B01338295
C01261789
D012786110

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6139270.439811%
B6139661.075094%
C613970.114025%
D6134130.211933%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7483 6182 9 9 0.12% 0.15%
B 7483 6184 30 30 0.40% 0.49%
C 7483 6182 0 0 0.00% 0.00%
D 7483 6181 6 6 0.08% 0.10%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 223 113127 752.96 734 720 149.3
A 13 251 54290 358.84 734 720 149.3
A 15 239 44350 292.25 734 720 149.3
B 10 16 138484 982.73 740 722 140.2
B 0 214 62749 442.47 740 722 140.2
B 4 81 24599 170.33 740 722 140.2
C 13 61 5486 28.93 713 717 164.9
C 8 222 3871 19.13 713 717 164.9
C 3 202 1723 6.1 713 717 164.9
D 2 234 19192 107.03 701 683 172.9
D 13 137 18817 104.86 701 683 172.9
D 14 34 17592 97.77 701 683 172.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter